(a) Specify, giving reasons whether the following systems are closed, open or isolated when in operation
(i) Kitchen Refrigerator
(ii) Ice-cream freezer
(iii) Scooter Engine
(iv) Universe
(b) State, giving brief illustration, whether the following properties of a system are intensive or extensive :
(i) Pressure
(ii) Volume
(iii) Density
(iv) Temperature
(v) Specific Volume
(vi) Kinetic Energy